[Mpi3-ft] MPI_Comm_validate() protection

[Darius Buntinas]

I think this is OK.  Some suggestions inline.

-d

On Dec 20, 2011, at 12:15 PM, Josh Hursey wrote:

> For the resetting of the matching, how about we replace the
> problematic sentence in 17.7.1 with:
>   "Upon successful re-activation of collective communication by a
> validation operation the matching of collective operations is reset,
> except where exempt (e.g., drain and communication object creation
 ^^^^^^^^^^^^^^^^^^^^
 unless otherwise specified
> operations). Therefore collective operations do not match across the
              ^^^^^^^^^^
              In other words,
> notification of a process failure. Validation operations will match
> across the notification of a process failure."